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FinnZ [79.3K]
3 years ago
10

What are the zeros of the polynomial function y=2x^3-7x^2+2x+3?

Mathematics
1 answer:
zlopas [31]3 years ago
7 0

y = 2 {x}^{3}  - 7 {x}^{2}  + 2x + 3

By inspection 1 is a root of y ,
Hence , (x-1) is a factor of y ,

\dfrac{2 {x}^{3} - 7 {x}^{2}  + 2x + 3 }{x - 1}  = 2 {x}^{2}  - 5x - 3 \\  \\ 2 {x}^{2}  - 5x - 3 = (2x + 1)(x - 3)

Hence , the 2 other roots are -1/2 and 3 , and the above graphs confirms the same.

Hope it helps you :)

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Reflect the point in a the x- axis and b the y-axis (-2,6)
avanturin [10]
If you were to reflect them, the answer would be the same numbers with the opposite sign. Therefore, the answer should be (2,-6) hope that helped!!!!
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The distance between Troy City and Ben City is 315 miles. How far apart<br> are they on the map?
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The least amount of wrapping paper needed to wrap a cube-shaped gift is 150 square inches. How long is one side of the gift?
devlian [24]


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5 0
3 years ago
Can you solve this? ;)
katovenus [111]
Hi there!

The answer is C.
25x + 12y + 4 \leqslant 130

The question has already revealed the following data:
x = number of tickets.
y = number of t-shirts.

We can now find the total cost function.
The cost of 1 ticket is $ 25
and therefore the total cost for all of the tickets is $25 ×
the amount of tickets, mathematically $25 × x, hence 25x.

The cost of 1 shirt is $ 12
and therefore the total cost for all of the tickets is $12 ×
the amount of shirts, mathematically $12 × y, hence 12y.

When making the total cost function, don't forget to include the service fee of $4.

Now we can conclude that the total cost function is the following:
25x + 12y + 4

Maya only has $130 and therefore the total cost must be smaller than or equal to this amount of money. The answer is C.
25x + 12y + 4 \leqslant 130
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Solve for x. Round to the nearest tenth, if necessary.
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Answer:

15.4 (rounded to 1dp)

Step-by-step explanation:

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